liedou_uniapp/utils/checkIdCard.js

const city = {
  11: '北京',
  12: '天津',
  13: '河北',
  14: '山西',
  15: '内蒙古',
  21: '辽宁',
  22: '吉林',
  23: '黑龙江 ',
  31: '上海',
  32: '江苏',
  33: '浙江',
  34: '安徽',
  35: '福建',
  36: '江西',
  37: '山东',
  41: '河南',
  42: '湖北 ',
  43: '湖南',
  44: '广东',
  45: '广西',
  46: '海南',
  50: '重庆',
  51: '四川',
  52: '贵州',
  53: '云南',
  54: '西藏 ',
  61: '陕西',
  62: '甘肃',
  63: '青海',
  64: '宁夏',
  65: '新疆',
  71: '台湾',
  81: '香港',
  82: '澳门',
  91: '国外'
};
const regCity = `(${Reflect.ownKeys(city).join('|')})`;
//当前日期
const currentDate = new Date();
const year = String(currentDate.getFullYear()).split('');
const month = String(currentDate.getMonth() + 1).split('');
const day = String(currentDate.getDate()).split('');
//处理小于10的月份和天数
if (month.length < 2) {
  month.unshift('0');
}
if (day.length < 2) {
  day.unshift('0');
}
//校验时间月、日
const regDay = `(((0[13578]|1[02])([0-2]\\d|3[0-1]))|(02[0-2]\\d)|((0[469]|11)([0-2]\\d|30)))`;
//校验十五位身份证号
const reg15 = `(${regCity}\\d{4}\\d{2}((0[1-9])|(10|11|12))(([0-2][1-9])|10|20|30|31)\\d{2})`;
//当前月校验
const currentYearMonth = `${month[0]}${month[1]}${day[0]==0? `0[1-${day[1]}]`:`([0-${day[0]-1}][1-9])|(${day[0]}[0-${day[1]}])`}`;
/***当前年其他月份校验*/
  //当前月小于十月份校验
const min10Month = `0[1-${month[1] - 1}](0[1-9]|[1-2]\\d|3[0-1])`;
//当前月大于等于十月份校验
const max10Month = `(0[1-9](0[1-9]|[1-2]\\d|3[0-1]))${month[1]==0? '':`|(1[0-${month[1] - 1}](0[1-9]|[1-2]\\d|3[0-1]))`}`;
const currentYearOtherMonth = month[0] == 0? min10Month:max10Month;
/***组装身份证号校验规则*/
//当前年
const currentYear = `${year[0]}${year[1]}${year[2]}${year[3]}`;
//当前年份校验,当前月份是一月份只使用 currentYearMonth 校验月份
const currentYearReg = `(${currentYear}${ month[0] == 0 && month[1] == 1? '(':`(${currentYearOtherMonth}|`}${currentYearMonth}))`;
//其他年份校验
const regMillenniumMinBirthday = `${year[0]}[0-${year[1]}](([0-${year[2] - 1<0? 0:year[2] - 1}]\\d)|(${year[2]}[0-${year[3] - 1 < 0? 0:year[3] - 1}]))`;
const otherYearReg = `((([0-${year[0] - 1}]\\d{3})|(${regMillenniumMinBirthday}))${regDay})`;
const regBirthday18 = `(${otherYearReg}|${currentYearReg})`;
const reg18 = `(${regCity}\\d{4}${regBirthday18}\\d{3}[0-9Xx])`;
const reg = new RegExp(`^(${reg15}|${reg18})*$`);

const fn = (idCardNum) => {
  if (!idCardNum) return false
  return reg.test(idCardNum)
}

export default fn